package org.xielei.list;

import org.junit.Test;

import java.util.ArrayList;

/**
 * List
 *
 * @author xielei
 * @date 2020/9/9
 */
public class ListTest {

    @Test
    public void test() {
        ArrayList<Object> arrayList = new ArrayList<>();
        if (arrayList == null) {
            System.out.println("in");
        }
        System.out.println("out");
    }
}
